Top JavaScript Developers
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$5,000+$25 - $49 / hr50 - 249London, EnglandServices provided
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See all 91 projectsDigis, a Fiverr company (NYSE: FVRR), is a web development and engineering service provider specializing in full-stack web development and custom website development. The company consistently receives positive feedback, with approximately 95% of reviews highlighting their high-quality developers and management excellence. Clients frequently commend their project management skills and responsiveness, making them a reliable partner for complex web programming and online development projects.
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$5,000+$25 - $49 / hr10 - 49Zagreb, Croatia
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See all 9 projectsProject42.Agency [powered by Uprise] is a web development company that excels in Web Programming, Custom Website Development, and Web Application Development. With 100% positive feedback from clients, they are praised for their exceptional project management, timely delivery, and ability to blend creativity with technical expertise, meeting and often exceeding client expectations.
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$5,000+$25 - $49 / hr10 - 49Dubai, United Arab Emirates
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See all 5 projectsAALA IT Solutions is a web development company specializing in Full-Stack Web Development and React Native app development. They have received overwhelmingly positive feedback, with clients praising their timely delivery, adaptability, and effective communication. Approximately 75% of reviews highlight their ability to meet complex project requirements and enhance user experiences, while suggestions for improvement are minimal.
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$50,000+$100 - $149 / hr50 - 249Lurgan, Northern Ireland
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See all 9 projectsGCD is a proficient web development company offering services such as custom website development and web application development. They consistently receive positive feedback, with 100% of reviews highlighting their reliable and responsive project management, timely delivery, and ongoing support. Clients appreciate their approachable team and the quality of their digital solutions, which enhance user experience and support business objectives.
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$50,000+$100 - $149 / hr50 - 249München, Germany
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See all 10 projectsCOBE is a web development company excelling in Custom Website Development and Web Application Development. With 100% positive feedback, clients commend their flexibility, professional communication, and ability to integrate quickly with teams. Notably, 90% of reviews highlight their impressive UX/UI improvements and agile project management, contributing to enhanced user satisfaction and successful project outcomes.
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$5,000+$25 - $49 / hr50 - 249Cherkasy, Ukraine
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See all 10 projectsVReal Soft specializes in Website Development and Web Design, providing tailored online solutions like responsive web applications and administrative dashboards. Their clients commend their effective project management, timely delivery, and deep domain knowledge, particularly in niche markets such as hairstyling and salons. Overall, feedback highlights VReal Soft's ability to meet specific client needs proficiently.
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Undisclosed< $25 / hr50 - 249Houston, TX
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See all 9 projectsCraftedQ is a web development company specializing in Custom Website Development and WordPress Website Development. The reviews indicate a 100% positive feedback rate, with a notable emphasis on their attention to detail and commitment to quality. Approximately 80% of reviewers highlight their expertise in delivering tailored, user-friendly solutions, and efficient project management, consistently meeting deadlines and exceeding client expectations.
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$5,000+$50 - $99 / hr50 - 249Zagreb, Croatia
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See all 30 projectsCinnamon is a web development company specializing in custom website development, web design, and full-stack web development. With a focus on both front-end and back-end development, 75% of reviewers highlight their responsive communication and project management skills. Clients appreciate their adaptability and ability to meet complex programming challenges, although some suggest improvement in expectation setting. Overall, their expertise consistently delivers impressive results across diverse projects.
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$10,000+$25 - $49 / hr50 - 249Addis Ababa, Ethiopia
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See all 3 projectsAddis Software is a web development company specializing in custom website development and WordPress themes. Reviews highlight their ability to deliver projects on time and within budget, with 100% of the feedback being positive. Clients appreciate their high-quality service and value, though some suggest enhancing internal SEO expertise.
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$5,000+$25 - $49 / hr10 - 49Kraków, Poland
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See all 26 projectsAppricotsoft is a web development company specializing in comprehensive Website Development, Web Programming, and Web Application Development. The company receives overwhelmingly positive feedback, with over 90% of reviewers praising their project management, technical expertise, and proactive communication. Clients consistently highlight Appricotsoft's commitment to quality and innovative solutions, especially in Full-Stack and Custom Website Development, with seamless project execution and high satisfaction rates noted across various industries.
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$1,000+$50 - $99 / hr10 - 49Toronto, Canada
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See all 10 projectsMeevo Digital is a full-stack web development company known for custom website development and web application development services. Clients highlight their impressive communication and responsiveness, with 100% of reviewers praising their project management efficiency. The company consistently delivers high-quality, mobile-friendly solutions that align with client needs, resulting in improved business processes and increased efficiency.
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$10,000+$50 - $99 / hr10 - 49Prague, Czech Republic
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See all 5 projectsedgy.digital is a web development company known for its expertise in creating comprehensive web solutions, including front-end and back-end development. With 100% positive feedback, clients praise the firm's detailed project management and creative solutions, noting their timely delivery and ability to enhance project outcomes. The company's strengths lie in web application development, online development, and full-stack web development.
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$25,000+$50 - $99 / hr2 - 9Montréal, Canada
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See all 4 projectsMonarq is a proficient web development company specializing in custom website development and web application development. Across reviews, clients consistently praise Monarq's agile collaboration, timely delivery, and strong technical expertise, especially in Drupal. Approximately 70% of reviewers highlight Monarq's ability to enhance website performance and user experience, while 30% commend their communication and reliability.
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$5,000+$50 - $99 / hr10 - 49Duluth, GA
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See all 9 projectsBits Kingdom is a full-stack web development company specializing in custom website development, web application development, and web design services. The company has received overwhelmingly positive feedback, with approximately 90% of reviewers highlighting their technical skills and effective communication. Clients appreciate their professionalism, project management, and ability to deliver tailored solutions, leading to measurable increases in sales and streamlined operations.
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$25,000+$25 - $49 / hr50 - 249Hanoi, Vietnam
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See all 10 projectsAdamo Software is a full-stack web development company specializing in web application development, front-end, and back-end development. With 100% positive feedback, clients praise their professionalism, timely delivery, and effective communication. Impressively, 83% of reviewers emphasize their fast delivery and high-quality work, while 67% commend their customer service and value for cost.
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$10,000+$50 - $99 / hr2 - 9Malahide, Ireland
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See all 11 projectsMawla is a web development company specializing in custom website development, full-stack web development, and web application development. Reviews reflect a high level of client satisfaction, with 100% positive feedback highlighting their timely delivery, excellent communication, and ability to meet complex project demands. Notably, 80% of reviewers praised their project management and responsiveness.
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$10,000+$50 - $99 / hr50 - 249Wrocław, Poland
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See all 26 projectsRST Software is a distinguished web development company, renowned for its full-stack web development and web application development services. Reviews indicate a high level of client satisfaction, with 100% positive feedback highlighting their ability to deliver large, secure IT systems and exceptional customer service. A recurrent theme is their collaborative approach and dedication to providing long-term solutions, as noted by 95% of reviewers.
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$10,000+$50 - $99 / hr2 - 9
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See all 36 projects56 Degrees is a web development company specializing in custom website development and full-stack web development services. Reviews consistently highlight their expertise in front-end and back-end development, with 100% of clients commending their timely delivery and responsive communication. Clients frequently note their ability to exceed expectations and adapt to evolving project needs, underscoring their proficiency in creating visually appealing and functional websites.
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$10,000+Undisclosed10 - 49Austin, TX
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See all 6 projectsLiving Proof Creative is a web development company specializing in custom website development and SEO optimization. The company receives overwhelmingly positive feedback for its ability to enhance clients' brand recognition and drive website traffic, with 100% of reviewers highlighting their responsiveness and deep understanding of client needs and company culture.
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$5,000+$50 - $99 / hr10 - 49Miami, FL
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See all 13 projectsKadabra IT is a web development company specializing in custom website development, web application development, and ongoing site maintenance. The company is highly praised for its responsive and patient project management, with over 80% of reviewers highlighting their exceptional customer service and commitment to client satisfaction. A few reviews mention minor communication challenges, but overall, Kadabra IT is regarded as a cost-effective and reliable partner.
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$50,000+$100 - $149 / hr50 - 249Iași, Romania
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See all 6 projectsThinslices Development is a web development company specializing in custom website development, full-stack web development, and web application development. Across their reviews, 100% of clients praise their strong communication, project management, and ability to deliver projects on time and within budget. They are also noted for their collaborative approach and expertise in early-stage projects, making them an excellent partner for complex web programming tasks.
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$1,000+$25 - $49 / hr50 - 249Jaipur, India
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See all 2 projectsKistechno Software offers Website Development and IT support services, including Web Design and graphics design. The reviews highlight a strong project management style with effective communication and timely deliverables. Clients appreciate the team's technical support and collaborative environment, demonstrating good working experience and support capabilities.
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$10,000+$100 - $149 / hr10 - 49Parma Heights, OH
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See all 15 projectsGalaxy IT INC is a web development company specializing in front-end and full-stack web development services. The company has received overwhelmingly positive feedback, with 100% of reviewers praising their excellent communication skills, responsiveness, and commitment to client satisfaction. Notably, Galaxy IT INC is recognized for delivering projects on time and maintaining high accuracy in implementing designs.
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$50,000+$50 - $99 / hr50 - 249London, England
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See all 18 projectsMad Devs is a web development company known for delivering comprehensive services, including custom website development and full-stack web development. The reviews highlight their exceptional communication and support, with 75% of reviewers praising these aspects. Their project management is highly rated, ensuring timely and reliable delivery, while their responsiveness and transparency are consistently mentioned as standout qualities by their clients.
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$10,000+$25 - $49 / hr50 - 249London , England
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See all 12 projectsWise Vision is a web development company specializing in Full-Stack Web Development, Custom Website Development, and Web Application Development. With 100% positive feedback, clients commend their professionalism, innovative ideas, and excellent project management. Approximately 75% of the reviews highlight their expertise in Angular and Node.js technologies, showcasing their ability to deliver responsive and scalable solutions.
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$25,000+$100 - $149 / hr2 - 9Austin, TX
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See all 17 projectsStandard Beagle Studio is a comprehensive web development company specializing in custom website development and web application development. They have a strong reputation for delivering high-quality services on time and within budget, with 100% of reviewers highlighting their responsiveness and professionalism. Clients frequently commend their ability to meet complex and unique needs, with 80% of reviewers emphasizing their excellent project management and communication skills.
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$25,000+$100 - $149 / hr10 - 49Takoma Park, MD
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See all 25 projects45RPM is a web development company specializing in custom website development and web design. According to client feedback, 100% of reviewers express satisfaction with their timely delivery and excellent communication. The company is praised for its efficient project management and the ability to enhance user experience, resulting in a 10% increase in average order value.
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$10,000+$150 - $199 / hr10 - 49Denver, CO
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See all 19 projectsGreen Hat Web Solutions is a web development company offering comprehensive services, including website design, development, and maintenance. They are highly praised for their responsiveness and professionalism, with 100% of reviewers highlighting their timely delivery and effective communication. Clients commend their ability to tailor services to unique business needs, demonstrating flexibility and creativity in web programming and design.
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$10,000+$50 - $99 / hr10 - 49Warszawa, Poland
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See all 16 projectsArtifact | Design Engineered is a full-stack web development company specializing in web design, custom website development, and Webflow development. The company has consistently received positive feedback across projects, with clients highlighting their strong project management skills and capability to deliver on time. Their ability to quickly adapt and align with client needs, along with maintaining a clear and proactive communication strategy, contributes to their 100% client satisfaction rate.
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$10,000+< $25 / hr50 - 249Mumbai, India
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See all 48 projectsWDI | Mobile App Development is a comprehensive web development company specializing in full-stack web development, digital marketing, and custom website development. With over 20 years of experience, they consistently deliver high-quality solutions, earning overwhelmingly positive feedback from clients. Approximately 90% of reviewers emphasize their exceptional project management and innovative solutions, while 80% highlight their excellent communication and reliability.
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$25,000+$150 - $199 / hr10 - 49El Segundo, CA
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See all 9 projectsBoundary is a highly skilled web development company specializing in custom website development, web application development, and comprehensive branding solutions. Across various reviews, 100% of clients praised their creativity, technical expertise, and collaborative approach. Clients highlighted the company's ability to deliver high-quality, innovative web solutions that effectively align with brand goals, resulting in improved engagement and a strong online presence.
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$10,000+$100 - $149 / hr250 - 999Brooklyn, NY
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See all 36 projectsFive, an Endava company, is a versatile growth consulting and digital product development firm that offers strategic consulting, app development, user acquisition, and marketing services. Reviews reflect a high level of client satisfaction, with nearly all feedback highlighting their professionalism, responsiveness, and strategic capability. Approximately 90% of reviewers emphasize their seamless integration with internal teams and their commitment to ensuring project success. Positive impact and expertise in digital strategy and user engagement are recurring themes.
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$5,000+$25 - $49 / hr10 - 49Warszawa, Poland
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See all 6 projectsBit Adventure is a web development company specializing in creating custom platforms and applications using modern technologies such as React.js, Node.js, Vue, and MySQL. Across their reviews, 100% of clients highlight their flexibility, problem-solving skills, and effective communication. Clients consistently praise their timely project delivery and ability to adapt to feedback, indicating a strong focus on collaboration and client success.
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$5,000+$25 - $49 / hr10 - 49Warszawa, Poland
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See all 19 projectsLomray Software is a proficient company specializing in Web Development and Custom Website Development, offering services that include UX/UI, Front-End, and Back-End Development. The company consistently receives positive feedback for its responsiveness, professionalism, and commitment to delivering high-quality results, with 100% of reviewers highlighting their excellent communication and technical expertise. Their ability to integrate seamlessly with existing teams and deliver projects within budget is frequently praised.
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$25,000+$150 - $199 / hr10 - 49Encinitas, CA
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See all 7 projectsFifty and Fifty is a creative agency that excels in custom website development, web design, and online development, particularly for nonprofit organizations. Consistently praised for their project management and ability to deliver on time, 100% of reviewers highlight their unique creativity, communication, and client-focused approach. While their tech-heavy processes may challenge less tech-savvy users, their support ensures smooth project execution.
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$10,000+< $25 / hr250 - 999Jaipur, India
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See all 3 projectsZcodeo LLP is a web development company specializing in custom website development and full-stack web development services. With 100% positive feedback from clients, they are praised for their technical skills, effective project management, and strong communication. They have successfully delivered complex healthcare solutions, demonstrating expertise in both front-end and back-end development.
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$10,000+$25 - $49 / hr10 - 49
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See all 12 projectsAttractor Software LLC is a web development company adept in custom website and web application development. Reviews highlight their strong project management skills and responsiveness, with 100% of reviewers appreciating their proactive communication and solution-oriented approach. However, 50% noted technical issues during projects, indicating potential areas for improvement in implementation.
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$5,000+$50 - $99 / hr50 - 249České Budějovice, Czech Republic
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See all 11 projectsArgo22 is a full-service web development company specializing in custom website development, web application development, and both front-end and back-end development. The company has received overwhelmingly positive feedback, with 100% of reviewers highlighting their ability to deliver projects on time and in line with expectations. Clients frequently commend their effective communication, problem-solving skills, and understanding of business needs, making them a trusted partner for comprehensive digital solutions.
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$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
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See all 22 projectsRadency is a web development company offering services in web app development, full-stack web development, and custom website development. Reviews highlight their expertise in both front-end and back-end development, with approximately 90% of feedback being positive. Clients praise Radency for their project management, adaptability, and ability to meet deadlines effectively, often exceeding expectations in functionality and aesthetics.
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$50,000+$50 - $99 / hr50 - 249Novi Sad, Serbia
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See all 26 projectsCodetribe is a full-stack web development company known for delivering custom web applications and solutions across various industries. The reviews indicate an overwhelmingly positive reception, with clients consistently praising their professionalism, timely delivery, and ability to adapt to client needs. Approximately 100% of reviewers highlighted their strong communication skills and collaborative approach, contributing to successful project outcomes in web application development and web design.
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$5,000+$50 - $99 / hr10 - 49
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See all 27 projectsLOOKSGREAT.STUDIO is a web development and design company known for its high-quality website and application development services, including full-stack web development and UI/UX design. The company receives overwhelmingly positive feedback, with 100% of reviewers praising their balance of aesthetic design and technical performance, resulting in increased conversion rates and user engagement. Clients appreciate their proactive communication and professional project management.
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$25,000+$50 - $99 / hr50 - 249
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See all 18 projectsUppLabs LLC is a competent web development company specializing in full-stack development, web application development, and front-end development, particularly with React. Reviews highlight their professionalism, reliability, and ability to deliver high-quality web applications. Impressively, 80% of reviewers commend their technical expertise and proactive approach, with 90% noting their strong project management and communication skills. The team is consistently praised for exceeding expectations and contributing substantial value to projects.
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$10,000+$50 - $99 / hr50 - 249Plano, TX
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See all 15 projectsZiffity Solutions is a web development company specializing in Magento 2 e-commerce and custom website development. The company is praised for its strong Magento team and excellent organizational standards, with 100% of reviews highlighting effective project management and timely delivery. Reviewers highly recommend their services, noting their quick implementation and maintenance capabilities.
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$10,000+$50 - $99 / hr250 - 999Las Vegas, NV
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See all 3 projectsSpurTree USA, Inc. is a versatile technology solutions provider specializing in app development, data architecture, and AI services. Across reviews, 100% of clients commend their timely delivery, technical expertise, and commitment to quality, though some suggest enhancing project management skills. Their strategic planning, flexibility, and thorough documentation further highlight their proficiency and reliability in executing complex projects.
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$1,000+< $25 / hr50 - 249Mohali, India
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See all 44 projectsDeftsoft is a versatile web development company specializing in custom website development, web application development, and SEO. They consistently receive high praise, with approximately 90% of reviewers highlighting their responsive communication and timely delivery. While most feedback is positive, 20% suggest improvements in content writing and UI/UX design.
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$25,000+$50 - $99 / hr10 - 49Budapest, Hungary
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See all 7 projectsBRAINSUM is a proficient web development company specializing in custom website development, full-stack web development, and web application development. With 100% positive feedback, clients commend their exceptional project management, timely delivery, and problem-solving capabilities. They are praised for their communication skills and innovative, solution-oriented approach, making them a reliable partner for complex web programming and design projects.
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$10,000+$50 - $99 / hr50 - 249Austin, TX
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See all 11 projectsScio is a versatile software development company specializing in web development and web application development, with a strong focus on integrating digital solutions. According to reviews, 100% of clients were impressed by their seamless integration into existing teams and effective project management, highlighting their responsiveness and strong communication skills. Customers appreciated Scio’s alignment with their culture and work style, with no reported areas for improvement.
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$10,000+$25 - $49 / hr10 - 49L'viv, Ukraine
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See all 9 projects.doCode is a Web Development company specializing in Front-End Development, Custom Website Development, and Full-Stack Web Development. They consistently receive high praise, with 100% of reviewers highlighting their professionalism, timely delivery, and adherence to best practices. Their expertise in Web Programming and design integration ensures reliable and efficient project outcomes.
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$5,000+$50 - $99 / hr10 - 49Львів, Ukraine
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See all 6 projectsMarffa Agency is a web development company specializing in Website Development and Custom Website Development. The agency consistently receives positive feedback for their agility, strategic thinking, and responsive project management. Reviews highlight their ability to meet tight deadlines and deliver quality user-friendly websites, with 100% of reviewers praising their professionalism and communication. Some suggested improvements include expanding language capabilities and internal documentation.
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$1,000+$50 - $99 / hr10 - 49
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See all 14 projectsHey Reliable is a distinguished web development company specializing in Full-Stack Web Development, particularly in WordPress and Front-End Development. Across multiple reviews, clients commend their high-quality, adaptive, and timely services, with 100% of the feedback being positive. Notably, 75% of reviewers highlight their exceptional project management and client-focused approach.
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$1,000+$50 - $99 / hr10 - 49Fleet, England
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See all 13 projectsFlow Guys is a web development company specializing in Website Development, Web Design, and Custom Website Development projects, primarily leveraging the Webflow platform. They consistently receive positive feedback, noted for their professionalism, responsiveness, and dedication to client satisfaction, with over 90% of reviews highlighting their on-time delivery and proactive communication. Many clients commend their ability to integrate complex functionalities seamlessly while maintaining high standards of design and user experience.
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List of the Top 15 JavaScript Development Companies
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$75,000+$100 - $149 / hr50 - 249Vancouver, Canada
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
90% Web Development50% JavaScript10% Other -
$25,000+$50 - $99 / hr50 - 249Kraków, Poland
Ability to deliver
39.3/40.019.4/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
60% Web Development50% JavaScript40% Other -
$25,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.6/40.019.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
40% Web Development60% JavaScript60% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
38.7/40.018.8/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
45% Web Development75% JavaScript55% Other -
$10,000+$50 - $99 / hr50 - 249Montevideo, Uruguay
Ability to deliver
39.5/40.020/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
50% Web Development35% JavaScript50% Other -
$10,000+$25 - $49 / hr250 - 999San Francisco, CA
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
20% Web Development40% JavaScript80% Other -
$10,000+$50 - $99 / hr10 - 49London, England
Ability to deliver
38.7/40.019.4/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Web Development90% JavaScript50% Other -
$10,000+$50 - $99 / hr50 - 249Amsterdam, Netherlands
Ability to deliver
39.1/40.019.8/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
30% Web Development70% JavaScript70% Other -
$5,000+$50 - $99 / hr50 - 249Chicago, IL
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
35% Web Development40% JavaScript65% Other -
$5,000+$25 - $49 / hr50 - 249Warszawa, Poland
Ability to deliver
36.3/40.017.4/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$25,000+$25 - $49 / hr50 - 249Newark, DE
Ability to deliver
39.4/40.019.4/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
40% Web Development35% JavaScript60% Other -
$1,000+< $25 / hr250 - 999Walpole, MA
Ability to deliver
35.9/40.016.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
40% Web Development35% JavaScript60% Other -
$50,000+$50 - $99 / hr1,000 - 9,999New York, NY
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Web Development25% JavaScript90% Other -
$10,000+$25 - $49 / hr250 - 999New York, NY
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
30% Web Development15% JavaScript70% Other -
$10,000+$50 - $99 / hr250 - 999Marlborough, MA
Ability to deliver
38.9/40.019.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
25% Web Development25% JavaScript75% Other -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
37/40.018/20 Reviews10/10 Clients & Experience9/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$25,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.6/40.019.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
20% Web Development50% JavaScript80% Other -
$10,000+$25 - $49 / hr50 - 249Kraków, Poland
Ability to deliver
39.5/40.020/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
20% Web Development50% JavaScript80% Other -
$100,000+$25 - $49 / hr250 - 999Cebu City, Philippines
Ability to deliver
38.7/40.020/20 Reviews10/10 Clients & Experience8.7/10 Market PresenceService focus
30% Web Development20% JavaScript70% Other -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
36.1/40.016.4/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
38.1/40.018.2/20 Reviews9.9/10 Clients & Experience10/10 Market PresenceService focus
15% Web Development25% JavaScript85% Other -
$50,000+$25 - $49 / hr50 - 249Kharkiv, Ukraine
Ability to deliver
36/40.016.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
45% Web Development50% JavaScript55% Other -
$10,000+< $25 / hr250 - 999Hanoi, Vietnam
Ability to deliver
38.3/40.018.8/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
30% Web Development21% JavaScript70% Other -
$10,000+$25 - $49 / hr1,000 - 9,999Plano, TX
Ability to deliver
36.5/40.016.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
20% Web Development25% JavaScript80% Other -
$25,000+< $25 / hr250 - 999Ahmedabad, India
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
45% Web Development10% JavaScript55% Other -
$25,000+$50 - $99 / hr50 - 249L'viv, Ukraine
Ability to deliver
39/40.019.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
30% Web Development40% JavaScript70% Other -
$50,000+$150 - $199 / hr250 - 999Irvine, CA
Ability to deliver
36.1/40.016.2/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
30% Web Development30% JavaScript70% Other -
$50,000+$150 - $199 / hr50 - 249New York, NY
Ability to deliver
35.5/40.015.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$25,000+$50 - $99 / hr10 - 49Wrocław, Poland
Ability to deliver
38.1/40.018.4/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
40% Web Development70% JavaScript60% Other -
$5,000+$50 - $99 / hr50 - 249Maribor, Slovenia
Ability to deliver
36.1/40.020/20 Reviews10/10 Clients & Experience6.1/10 Market PresenceService focus
40% Web Development100% JavaScript60% Other
Top JavaScript Development Agencies
A JavaScript development company designs, builds, and maintains software products that rely on JavaScript across the stack. Teams typically handle front-end interfaces (React, Vue, or Angular), back-end services (Node.js, Express, NestJS), and database integrations. They translate business requirements into clean, maintainable code, implement third-party APIs, optimize performance, and provide ongoing support or feature enhancements. For startups, they may act as a dedicated product team; for enterprises, they often augment in-house engineers to accelerate delivery.
Most agencies bundle multiple offerings so clients can access full product life-cycle support:
- Discovery workshops & technical consulting
- UI/UX design and prototyping
- Front-end SPA or PWA development
- Server-side development with Node.js or Deno
- API design, GraphQL, and microservices architecture
- QA automation & performance testing
- DevOps, CI/CD, and cloud deployment (AWS, Azure, GCP)
- Post-launch maintenance and feature sprints
Some firms specialize in niches such as ecommerce storefronts, real-time dashboards, or IoT applications built with JavaScript frameworks like Next.js or Svelte.
Clutch data shows project budgets range widely:
- MVP or small web app - $15,000–$50,000
- Mid-size product build - $50,000–$200,000
- Enterprise-grade platform - $200,000–$1M+ | Hourly rates usually fall between $50–$149 depending on agency location, seniority, and specialization. Expect higher rates for U.S.-based teams and advanced services like real-time streaming or complex integrations.
- Align expertise: Verify experience with your required stack (e.g., React Native, TypeScript, serverless).
- Review case studies: Look for measurable outcomes—load-time reductions, user growth, or revenue lifts.
- Check communication style: Agile ceremonies, dedicated Slack channels, and transparent ticket tracking are green flags.
- Validate cultural fit: Long-term projects thrive when collaboration styles and time zones mesh.
- Compare total cost of ownership: Factor in maintenance, future scalability, and licensing—not just upfront build fees.
Shortlist 3-5 agencies on Clutch, schedule discovery calls, and request project roadmaps before signing an agreement.
- Guaranteed timelines without discovery
- No access to source code repositories during the engagement
- Outdated tech stacks (e.g., jQuery-only solutions for modern SPAs)
- Low developer retention or high turnover
- Vague pricing models or hidden fees
If an agency dismisses code reviews, ignores testing, or refuses to provide client references, proceed with caution
- Which JavaScript frameworks do you specialize in, and why?
- Can you walk me through a recent project with similar complexity?
- How do you ensure code quality—linting, peer reviews, automated tests?
- What is your approach to scalability and performance optimization?
- How will we communicate and track progress (tools, meeting cadence)?
- Who owns the intellectual property and source code upon project completion?
Clear answers reveal an agency’s maturity, processes, and commitment to delivering long-term value.
A freelancer is ideal for small fixes or short-term enhancements, offering lower overhead and flexible hours. Agencies provide multidisciplinary teams including project managers, UI designers, and QA engineers capable of delivering end-to-end solutions and scaling resources quickly. While agencies cost more, they reduce single-point-of-failure risk and accelerate time-to-market for complex products. How do JavaScript firms measure ROI? Common KPIs include page-load speed improvements, conversion rate uplifts, reduced infrastructure costs after code optimization, and user engagement metrics (session duration, churn reduction). Firms often set baseline metrics during discovery and provide post-launch analytics dashboards to demonstrate value.
Common KPIs include page-load speed improvements, conversion rate uplifts, reduced infrastructure costs after code optimization, and user engagement metrics (session duration, churn reduction). Firms often set baseline metrics during discovery and provide post-launch analytics dashboards to demonstrate value.